Blindsense

Blindsense Transmutation Level: Sor/Wiz 5, Experience 5 Components: V,S Time: 1 standard action Target: You Range: Personal Duration: 10 minutes/level Save: None Spell Resistance: No You gain the blindsense extraordinary ability with a range of 60 feet.

During the spell's duration, you do not need to make Spot or Listen checks to notice and locate creatures within range of your blindsense ability, provided that you have a line of effect to that creature.

Any opponent you cannot see has total concealment (50% miss chance) against you, and you still have the normal miss chance when attacking foes that have concealment. Visibility still affects your movement. You are still denied your Dexterity bonus to Armor Class against attacks from creatures that you cannot see.